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Simulated Variability of the Circulation in the North Atlantic from 1953 to 2003
- Article from:
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Journal of Climate
- Article date:
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October 1, 2008
- Author:
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;
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Copyright informationCopyright American Meteorological Society Oct 1, 2008. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
The variability of the circulation in the North Atlantic and its link with atmospheric variability are investigated in a realistic hindcast simulation from 1953 to 2003. The interannual-to-decadal variability of the subpolar gyre circulation and the Meridional Overturning Circulation (MOC) is mostly influenced by the North Atlantic Oscillation (NAO). Both circulations intensified from the early 1970s to the mid-1990s and then decreased. The monthly variability of both circulations reflects the fast barotropic adjustment to NAO-related Ekman pumping anomalies, while the interannual-to-decadal variability is due to the baroclinic adjustment to Ekman pumping, buoyancy forcing, and ...
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